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Sometimes when it's cold my car "hunts" for the idle.. Start it up, revs to 1500, drops to 500, revs to 1300, drops to 600, etc.. until it stabilizes at ~1200 or so.. Used to do it every time I started it now it only does it if it's REAL cold, so I'm guessing it's just a learning thing.
Patrick, clean out your throttle body, and the idle air passage, could just be your idle control valve is sticky. Dunno if that'd cause the bad mileage though, just a thought.
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1992 SVX LS-L #1222 Pearl White
1987 GL Turbo wagon, 5 lug conversion, D/R 5 speed (Rice killer)
1992 Dodge Ram 4x4 diesel (car hauler)
1968 Dodge Polara convertible (Camaro killer)
1990 Toyota Corolla FWD auto (330,000 mile grocery getter)
1986 VW Jetta
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